Who to be blame

If another guy is able to understand your girl better than you can, that's a problem.

If another guy has more time for your girl than you do,
that's a problem.

If another guy pays more attention to your girl more than you are, that's a problem.
If another guy is there for your girl more than you are, that's a problem.

If another guy is offering her more than what you can, that's a problem.

If another guy is taking the time to talk to her more than you do, that's a problem.

If another guy is able to make her smile more than You can,
that's a problem.

If another guy is nicer to your girl than you are, that's a
problem.

If another guy is treating your girl better
than you do, that's a problem.

If another guy cares about your girl more than you do, that's
a problem.
So in the end, if your girl decides to Leave you for him, don't
be surprised at all because the new guy has been everything
You were supposed to be.
Now from this, if the girl eventually leaves, Does it mean the
girl has been cheating all along by allowing this new guy ?